118 lines
3.7 KiB
Java
118 lines
3.7 KiB
Java
/*
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* Copyright (c) 2003, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4856966 8080462 8242332
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* @summary Test the MessageDigest.update(ByteBuffer) method
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* @author Andreas Sterbenz
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* @library /test/lib ..
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* @key randomness
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* @modules jdk.crypto.cryptoki
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* @run main/othervm ByteBuffers
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*/
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import java.nio.ByteBuffer;
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import java.security.*;
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import java.util.Arrays;
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import java.util.Random;
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import java.util.List;
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public class ByteBuffers extends PKCS11Test {
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private static Random random = new Random();
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public static void main(String[] args) throws Exception {
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main(new ByteBuffers(), args);
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}
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@Override
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public void main(Provider p) throws Exception {
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List<String> ALGS = getSupportedAlgorithms("MessageDigest",
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"SHA", p);
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int n = 10 * 1024;
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byte[] t = new byte[n];
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random.nextBytes(t);
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for (String alg : ALGS) {
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runTest(p, alg, t);
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}
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}
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private void runTest(Provider p, String alg, byte[] data) throws Exception {
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System.out.println("Test against " + p.getName() + " and " + alg);
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MessageDigest md = MessageDigest.getInstance(alg, p);
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byte[] d1 = md.digest(data);
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int n = data.length;
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// test 1: ByteBuffer with an accessible backing array
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ByteBuffer b1 = ByteBuffer.allocate(n + 256);
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b1.position(random.nextInt(256));
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b1.limit(b1.position() + n);
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ByteBuffer b2 = b1.slice();
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b2.put(data);
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b2.clear();
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byte[] d2 = digest(md, b2);
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if (Arrays.equals(d1, d2) == false) {
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throw new Exception("Test 1 failed");
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}
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// test 2: direct ByteBuffer
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ByteBuffer b3 = ByteBuffer.allocateDirect(n);
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b3.put(data);
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b3.clear();
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byte[] d3 = digest(md, b3);
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if (Arrays.equals(d1, d2) == false) {
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throw new Exception("Test 2 failed");
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}
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// test 3: ByteBuffer without an accessible backing array
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b2.clear();
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ByteBuffer b4 = b2.asReadOnlyBuffer();
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byte[] d4 = digest(md, b4);
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if (Arrays.equals(d1, d2) == false) {
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throw new Exception("Test 3 failed");
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}
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System.out.println("All tests passed");
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}
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private static byte[] digest(MessageDigest md, ByteBuffer b)
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throws Exception {
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int lim = b.limit();
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b.limit(random.nextInt(lim));
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md.update(b);
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if (b.hasRemaining()) {
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throw new Exception("Buffer not consumed");
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}
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b.limit(lim);
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md.update(b);
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if (b.hasRemaining()) {
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throw new Exception("Buffer not consumed");
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}
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return md.digest();
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}
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}
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